Automating and streaming backups is definitely the way to go. Otherwise, it is really likely your backups are outdated and/or incomplete.
Please add the capacity of your drives. Upgrading to fewer, high capacity drives can be well worth it.
We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.
Automating and streaming backups is definitely the way to go. Otherwise, it is really likely your backups are outdated and/or incomplete.
Please add the capacity of your drives. Upgrading to fewer, high capacity drives can be well worth it.
As the cold storage drives only connect from time to time, wouldn’t it be challenging for any automations to work in this situation? I definitely want to automate it but it might require some ledgers logging or something else for pending sync tasks.. e.g when drive A and B simultaneously plugged in, sync these set of data.. etc
at this complexity you should use a proper backup software instead of manual syncing.
Seems like a complete mess. Not sure what to tell you.
List the capacities for your drives and the total space used for each set of data.
How big is Data 001? Data 002? etc.
What is Drive A? What is Drive B? etc.
I can only connect 2 drives at the same time, maybe NAS could help?
Look for a USB DAS instead. Maybe a multi-bay docking station like a 5-bay that can let you plug everything in at once. Much simpler. A NAS would require reformatting your drives. Not bad for the future, just not ideal for right now IMO. Simplify how you access the drives you have in use before going to a NAS. They're much slower and usually limited by 1Gbps LAN.
Thank you for your feedback! I've made the changes to the post as you suggested, and I also included an image of the Excel sheet I created. Take a look and let me know if there are any further improvements I could have made.
It looks like all of your data fits on the 6TB and be backed up to your two 4TBs. Why aren't you doing that?
That would ensure an easy and simple way to maintain 3 copies.
The thing is that, I got way more data (estimating maybe 3TB more) of data to be 3-2-1 backed, thus 3x3=9TB total space. My setup here can barely handle 2 sets of my important data sadly.. I'm have to purchase some large disks in order to do that, thus the problem goes back to management (too many disks already)
This reminded me how I had to create montly view spreadsheet, because without such view I was losing track of when and which backup runs. Macrium Reflect.